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Escal J, Poenou G, Delavenne X, Bezzeghoud S, Mismetti V, Humbert M, Montani D, Bertoletti L. Tailoring oral anticoagulant treatment in the era of multi-drug therapies for PAH and CTEPH. Blood Rev 2024:101240. [PMID: 39245607 DOI: 10.1016/j.blre.2024.101240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 08/31/2024] [Accepted: 09/02/2024] [Indexed: 09/10/2024]
Abstract
The use of oral anticoagulants in the management of pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) presents distinct therapeutic challenges and benefits. In PAH, the benefits of oral anticoagulation are uncertain, with studies yielding mixed results on their efficacy and safety. Conversely, oral anticoagulants are a cornerstone in the treatment of CTEPH, where their use is consistently recommended to prevent recurrent thromboembolic events. The choice between vitamin K antagonists (VKAs) and direct oral anticoagulants (DOACs) remains a significant clinical question, as each type presents advantages and potential drawbacks. Furthermore, drug-drug interactions (DDIs) with concomitant PAH and CTEPH treatments complicate anticoagulant management, necessitating careful consideration of individual patient regimens. This review examines the current evidence on oral anticoagulant use in PAH and CTEPH and discusses the implications of DDIs within a context of multi-drug treatments, including targeted drugs in PAH.
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Affiliation(s)
- Jean Escal
- INSERM UMR1059, Université Jean Monnet, F-42023 Saint-Etienne, France; Laboratoire de Pharmacologie et Toxicologie, CHU de Saint-Etienne, F-42055 Saint-Etienne, France.
| | - Geraldine Poenou
- INSERM UMR1059, Université Jean Monnet, F-42023 Saint-Etienne, France; Service de Médecine Vasculaire et Thérapeutique, CHU de Saint-Etienne, F-42055 Saint-Etienne, France.
| | - Xavier Delavenne
- INSERM UMR1059, Université Jean Monnet, F-42023 Saint-Etienne, France; Laboratoire de Pharmacologie et Toxicologie, CHU de Saint-Etienne, F-42055 Saint-Etienne, France.
| | - Souad Bezzeghoud
- Service de Médecine Vasculaire et Thérapeutique, INSERM CIC-1408, CHU de Saint-Etienne, F-42055 Saint-Etienne, France.
| | - Valentine Mismetti
- INSERM UMR1059, Université Jean Monnet, F-42023 Saint-Etienne, France; Service de Pneumologie, CHU de Saint-Etienne, F-42055 Saint-Etienne, France.
| | - Marc Humbert
- INSERM UMR-S 999, Université Paris-Saclay, Paris, France; Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital Bicêtre (APHP), Le Kremlin-Bicêtre, France.
| | - David Montani
- INSERM UMR-S 999, Université Paris-Saclay, Paris, France; Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de L'Hypertension Pulmonaire OrphaLung, Hôpital de Bicêtre (APHP), Le Kremlin-Bicêtre, France.
| | - Laurent Bertoletti
- INSERM UMR1059, Université Jean Monnet, F-42023 Saint-Etienne, France; Service de Médecine Vasculaire et Thérapeutique, INSERM CIC-1408, INNOVTE, CHU de Saint-Etienne, F-42055 SaintEtienne, France.
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Stöllberger C, Finsterer J, Schneider B. Interactions between antiepileptic drugs and direct oral anticoagulants for primary and secondary stroke prevention. Expert Opin Drug Metab Toxicol 2024; 20:359-376. [PMID: 38712571 DOI: 10.1080/17425255.2024.2352466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 05/03/2024] [Indexed: 05/08/2024]
Abstract
INTRODUCTION Direct oral anticoagulants (DOAC) are the guideline-recommended therapy for prevention of stroke in atrial fibrillation (AF) and venous thromboembolism. Since approximately 10% of patients using antiepileptic drugs (AED) also receive DOAC, aim of this review is to summarize data about drug-drug interactions (DDI) of DOAC with AED by using data from PubMed until December 2023. AREAS COVERED Of 49 AED, only 16 have been investigated regarding DDI with DOAC by case reports or observational studies. No increased risk for stroke was reported only for topiramate, zonisamide, pregabalin, and gabapentin, whereas for the remaining 12 AED conflicting results regarding the risk for stroke and bleeding were found. Further 16 AED have the potential for pharmacodynamic or pharmacokinetic DDI, but no data regarding DOAC are available. For the remaining 17 AED it is unknown if they have DDI with DOAC. EXPERT OPINION Knowledge about pharmacokinetic and pharmacodynamic DDI of AED and DOAC is limited and frequently restricted to in vitro and in vivo findings. Since no data about DDI with DOAC are available for 67% of AED and an increasing number of patients have a combined medication of DOAC and AED, there is an urgent need for research on this topic.
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Coumau C, Gaspar F, Terrier J, Schulthess-Lisibach A, Lutters M, Le Pogam MA, Csajka C. Drug-drug interactions with oral anticoagulants: information consistency assessment of three commonly used online drug interactions databases in Switzerland. Front Pharmacol 2024; 15:1332147. [PMID: 38633615 PMCID: PMC11022661 DOI: 10.3389/fphar.2024.1332147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/15/2024] [Indexed: 04/19/2024] Open
Abstract
Background: Toxicity or treatment failure related to drug-drug interactions (DDIs) are known to significantly affect morbidity and hospitalization rates. Despite the availability of numerous databases for DDIs identification and management, their information often differs. Oral anticoagulants are deemed at risk of DDIs and a leading cause of adverse drug events, most of which being preventable. Although many databases include DDIs involving anticoagulants, none are specialized in them. Aim and method: This study aims to compare the DDIs information content of four direct oral anticoagulants and two vitamin K antagonists in three major DDI databases used in Switzerland: Lexi-Interact, Pharmavista, and MediQ. It evaluates the consistency of DDIs information in terms of differences in severity rating systems, mechanism of interaction, extraction and documentation processes and transparency. Results: This study revealed 2'496 DDIs for the six anticoagulants, with discrepant risk classifications. Only 13.2% of DDIs were common to all three databases. Overall concordance in risk classification (high, moderate, and low risk) was slight (Fleiss' kappa = 0.131), while high-risk DDIs demonstrated a fair agreement (Fleiss' kappa = 0.398). The nature and the mechanism of the DDIs were more consistent across databases. Qualitative assessments highlighted differences in the documentation process and transparency, and similarities for availability of risk classification and references. Discussion: This study highlights the discrepancies between three commonly used DDI databases and the inconsistency in how terminology is standardised and incorporated when classifying these DDIs. It also highlights the need for the creation of specialised tools for anticoagulant-related interactions.
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Affiliation(s)
- Claire Coumau
- Centre for Research and Innovation in Clinical Pharmaceutical Sciences, University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Frederic Gaspar
- Centre for Research and Innovation in Clinical Pharmaceutical Sciences, University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Jean Terrier
- Division of General Internal Medicine, Geneva University Hospitals, Geneva, Switzerland
- Geneva Platelet Group, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Clinical Pharmacology and Toxicology Division, Anesthesiology, Pharmacology, Intensive Care and Emergency Medicine Department, Geneva University Hospitals, Geneva, Switzerland
| | | | - Monika Lutters
- Clinical Pharmacy, Cantonal Hospital Aarau, Aarau, Switzerland
| | - Marie-Annick Le Pogam
- Department of Epidemiology and Health Systems, Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Chantal Csajka
- Centre for Research and Innovation in Clinical Pharmaceutical Sciences, University Hospital and University of Lausanne, Lausanne, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, University of Lausanne, Lausanne, Switzerland
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van Ommen CH, Luijnenburg SE. Anticoagulation of pediatric patients with venous thromboembolism in 2023. Thromb Res 2024; 235:186-193. [PMID: 38378308 DOI: 10.1016/j.thromres.2023.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/24/2023] [Accepted: 12/24/2023] [Indexed: 02/22/2024]
Abstract
Venous thromboembolism (VTE) is a rare and heterozygous disease in children. Management of VTE in children is complicated by age-related differences in epidemiology, recurrent VTE and bleeding risk, hemostatic proteins and pharmacokinetics of anticoagulants. Recently, the choice of anticoagulation has expanded to oral factor IIa and Xa inhibitors, which have been authorized for children for treatment of acute VTE and extended secondary prevention. These drugs have several properties that make them extremely suitable for use in children, including oral administration, antithrombin independence, less interactions with food and drugs and no need for monitoring. Unfortunately, the phase 3 studies had many exclusion criteria, and only a few term neonates and infants were included in these studies. Additional real-world data is needed to make evidence-based recommendations in these age and patient groups, as well.
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Affiliation(s)
- C Heleen van Ommen
- Department of Pediatric Hematology, Sophia Children's Hospital, Erasmus MC, Rotterdam, the Netherlands.
| | - Saskia E Luijnenburg
- Department of Pediatric Hematology, Sophia Children's Hospital, Erasmus MC, Rotterdam, the Netherlands
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Grymonprez M, Petrovic M, De Backer TL, Steurbaut S, Lahousse L. The Impact of Polypharmacy on the Effectiveness and Safety of Non-vitamin K Antagonist Oral Anticoagulants in Patients with Atrial Fibrillation. Thromb Haemost 2024; 124:135-148. [PMID: 37369234 PMCID: PMC10824584 DOI: 10.1055/s-0043-1769735] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/17/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND Polypharmacy may affect outcomes in patients with atrial fibrillation (AF) using non-vitamin K antagonist oral anticoagulants (NOACs) or vitamin K antagonists (VKAs) due to interactions or reduced adherence, but comparative data are lacking. Therefore, the impact of polypharmacy on AF-related outcomes and benefit-risk profiles of NOACs in patients with polypharmacy were investigated. METHODS AF patients initiating anticoagulation between 2013 and 2019 were included using Belgian nationwide data. Inverse probability of treatment weighted Cox regression was used to investigate outcomes. RESULTS Among 254,478 AF patients, 167,847 (66.0%) used ≥5 drugs. Polypharmacy was associated with higher stroke or systemic embolism (stroke/SE) (adjusted hazard ratio [aHR]: 1.08, 95% confidence interval [CI]: 1.02-1.15), all-cause mortality (aHR: 1.45, 95% CI: 1.40-1.50), and major bleeding risks (aHR: 1.29, 95% CI: 1.23-1.35). Among patients with polypharmacy, NOACs were associated with lower stroke/SE (aHR: 0.68, 95% CI: 0.63-0.73), all-cause mortality (aHR: 0.80, 95% CI: 0.77-0.84), major bleeding (aHR: 0.92, 95% CI: 0.87-0.97), and intracranial bleeding risks (aHR: 0.77, 95% CI: 0.69-0.85), but higher gastrointestinal bleeding risks (aHR: 1.10, 95% CI: 1.01-1.19) compared to VKAs. Major bleeding risks were lower with apixaban (aHR: 0.79, 95% CI: 0.74-0.85), but nonsignificantly different with other NOACs compared to VKAs. Lower major bleeding risks were observed with dabigatran (aHR: 0.91, 95% CI: 0.85-0.97) and apixaban (aHR: 0.77, 95% CI: 0.73-0.81) compared to rivaroxaban, and with apixaban compared to dabigatran (HR: 0.83, 95% CI: 0.77-0.90) and edoxaban (HR: 0.77, 95% CI: 0.70-0.85). CONCLUSION Polypharmacy was associated with increased thromboembolic, bleeding, and mortality risks in AF patients. NOACs had better benefit-risk profiles than VKAs in patients with polypharmacy.
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Affiliation(s)
- Maxim Grymonprez
- Department of Bioanalysis, Pharmaceutical Care Unit, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
| | - Mirko Petrovic
- Department of Geriatrics, Ghent University Hospital, Ghent, Belgium
| | | | - Stephane Steurbaut
- Centre for Pharmaceutical Research, Research group of Clinical Pharmacology and Clinical Pharmacy, Vrije Universiteit Brussel, Jette, Belgium
- Department of Hospital Pharmacy, UZ Brussel, Jette, Belgium
| | - Lies Lahousse
- Department of Bioanalysis, Pharmaceutical Care Unit, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, CA, The Netherlands
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Goldman M, Jacquot C, Land K. Medication Deferrals in Blood Donors. Transfus Med Rev 2024; 38:150777. [PMID: 37919209 DOI: 10.1016/j.tmrv.2023.150777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 09/19/2023] [Accepted: 10/01/2023] [Indexed: 11/04/2023]
Abstract
Medication use is extremely common in blood donors. Blood centers use various methods to obtain a history of medication use, all of which have strengths and weaknesses. Some data are available to develop policies for medications that impact product quality, transmissible disease testing, and infectious risks. Many blood centers defer donors for use of a small number of highly teratogenic medications, as a precautionary measure. Others also defer for possible harms related to the pharmacologic effects of medications. However, a single exposure to a blood component containing medication, with immediate dilution in the recipient's blood stream, is a very different situation from ongoing use of medication in a patient, with steady state concentrations achieved over time. It is therefore highly unlikely that these effects are relevant for recipient safety.
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Affiliation(s)
| | - Cyril Jacquot
- Division of Pathology and Laboratory Medicine, Children's National Hospital, Washington, DC, USA
| | - Kevin Land
- Department of Pathology, UT Health, San Antonio, TX, USA
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Zhang X, Mu H, Zhong Y, Wang R, Li W. Effect of High Altitude Environment on Pharmacokinetic and Pharmacodynamic of Warfarin in Rats. Curr Drug Metab 2024; 25:54-62. [PMID: 38409697 DOI: 10.2174/0113892002277930240201101256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/22/2023] [Accepted: 01/12/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND High altitude environment affects the pharmacokinetic (PK) parameters of drugs and the PK parameters are an important theoretical basis for guiding the rational clinical use of drugs. Warfarin is an oral anticoagulant of the coumarin class commonly used in clinical practice, but it has a narrow therapeutic window and wide individual variation. However, the effect of high altitude environment on PK and pharmacodynamic (PD) of warfarin is unclear. OBJECTIVE The objective of this study is to investigate the effect of a high altitude environment on PK and PD of warfarin in rats. METHOD Rats were randomly divided into plain group and high altitude group and blood samples were collected through the orbital venous plexus after administration of 2 mg/kg warfarin. Warfarin concentrations in plasma samples were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and PK parameters were calculated by the non-compartment model using WinNonlin 8.1 software. Meanwhile, the expression of PXR, P-gp and CYP2C9 in liver tissues was also determined by western blotting. The effect of high altitude environment on PD of warfarin was explored by measuring activated partial thromboplastin time (APTT) and prothrombin time (PT) values and then calculated international normalized ratio (INR) values based on PT. RESULTS Significant changes in PK behaviors and PD of warfarin in high altitude-rats were observed. Compared with the plain-rats, the peak concentration (Cmax) and the area under the plasma concentration-time curve (AUC) increased significantly by 50.9% and 107.46%, respectively. At the same time, high altitude environment significantly inhibited the expression of PXR, P-gp and CYP2C9 in liver tissues. The results of the PD study showed that high altitude environments significantly prolonged PT, APTT and INR values. CONCLUSION High altitude environment inhibited the metabolism and increased the absorption of warfarin in rats and increased the effect of anticoagulant effect, suggesting that the optimal dose of warfarin for patients at high altitude should be reassessed.
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Affiliation(s)
- Xiaojing Zhang
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Hongfang Mu
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Yan Zhong
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Rong Wang
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Wenbin Li
- Department of Pharmacy, 940th Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou, China
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Thai SQ, Herrington TC, Baetz BE, Jennings KA, Lackie ML, Bukovskaya Y, Velasco-Gonzalez C, Desai SV, Krim SR. Effect of Early Amiodarone Use on Warfarin Sensitivity, Blood Product Use, and Bleeding in Patients With a Left Ventricular Assist Device. Curr Probl Cardiol 2023; 48:101801. [PMID: 37209799 DOI: 10.1016/j.cpcardiol.2023.101801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
Data are scarce on the effect of amiodarone on warfarin sensitivity and related outcomes after placement of a left ventricular assist device (VAD). This retrospective study compared 30-day outcomes between patients on amiodarone vs no amiodarone after VAD implant. After exclusions, 220 patients received amiodarone and 136 patients did not. Compared to the no amiodarone group, the amiodarone group had a higher warfarin dosing index (0.53 [0.39, 0.79] vs 0.46 [0.34, 0.63]; P = 0.003), incidence of INR ≥ 4 (40.5 vs 23.5%; P = 0.001), incidence of bleeding (24.1 vs 14%; P = 0.021), and use of INR reversal agents (14.5 vs 2.9%, P ≤ 0.001). Amiodarone was associated with bleeding (OR, 1.95; 95% CI, 1.10-3.47; P = 0.022), but not after adjusting for age, estimated glomerular filtration rate, and platelet count (OR, 1.67; 95% CI, 0.92-3.03; P = 0.089). After VAD implant, amiodarone was associated with increased warfarin sensitivity and administration of INR reversal agents.
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Affiliation(s)
| | | | | | | | | | | | | | - Sapna Vinod Desai
- Cardiomyopathy and Heart Transplantation, John Ochsner Heart and Vascular Institute, New Orleans, LA
| | - Selim Ramzi Krim
- Cardiomyopathy and Heart Transplantation, John Ochsner Heart and Vascular Institute, New Orleans, LA; The University of Queensland School of Medicine, Ochsner Clinical School, New Orleans, LA
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Lucà F, Oliva F, Abrignani MG, Di Fusco SA, Parrini I, Canale ML, Giubilato S, Cornara S, Nesti M, Rao CM, Pozzi A, Binaghi G, Maloberti A, Ceravolo R, Bisceglia I, Rossini R, Temporelli PL, Amico AF, Calvanese R, Gelsomino S, Riccio C, Grimaldi M, Colivicchi F, Gulizia MM. Management of Patients Treated with Direct Oral Anticoagulants in Clinical Practice and Challenging Scenarios. J Clin Med 2023; 12:5955. [PMID: 37762897 PMCID: PMC10531873 DOI: 10.3390/jcm12185955] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/22/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
It is well established that direct oral anticoagulants (DOACs) are the cornerstone of anticoagulant strategy in atrial fibrillation (AF) and venous thromboembolism (VTE) and should be preferred over vitamin K antagonists (VKAs) since they are superior or non-inferior to VKAs in reducing thromboembolic risk and are associated with a lower risk of intracranial hemorrhage (IH). In addition, many factors, such as fewer pharmacokinetic interactions and less need for monitoring, contribute to the favor of this therapeutic strategy. Although DOACs represent a more suitable option, several issues should be considered in clinical practice, including drug-drug interactions (DDIs), switching to other antithrombotic therapies, preprocedural and postprocedural periods, and the use in patients with chronic renal and liver failure and in those with cancer. Furthermore, adherence to DOACs appears to remain suboptimal. This narrative review aims to provide a practical guide for DOAC prescription and address challenging scenarios.
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Affiliation(s)
- Fabiana Lucà
- Cardiology Department, Grande Ospedale Metropolitano, AO Bianchi Melacrino Morelli, 89129 Reggio Calabria, Italy
| | - Fabrizio Oliva
- Cardiology Department De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | | | - Stefania Angela Di Fusco
- Clinical and Rehabilitation Cardiology Department, San Filippo Neri Hospital, ASL Roma 1, 00135 Roma, Italy
| | - Iris Parrini
- Cardiology Department, Ospedale Mauriziano, 10128 Turin, Italy
| | - Maria Laura Canale
- Cardiology Department, Nuovo Ospedale Versilia Lido di Camaiore Lucca, 55049 Camaiore, Italy
| | - Simona Giubilato
- Cardiology Department, Cannizzaro Hospital, 95126 Catania, Italy
| | - Stefano Cornara
- Arrhytmia Unit, Division of Cardiology, Ospedale San Paolo, Azienda Sanitaria Locale 2, 17100 Savona, Italy
| | | | - Carmelo Massimiliano Rao
- Cardiology Department, Grande Ospedale Metropolitano, AO Bianchi Melacrino Morelli, 89129 Reggio Calabria, Italy
| | - Andrea Pozzi
- Cardiology Division Valduce Hospital, 22100 Como, Italy
| | - Giulio Binaghi
- Department of Cardiology, Azienda Ospedaliera Brotzu, 09047 Cagliari, Italy
| | - Alessandro Maloberti
- Cardiology Department De Gasperis Cardio Center, Niguarda Hospital, 20162 Milan, Italy
| | - Roberto Ceravolo
- Cardiology Unit, Giovanni Paolo II Hospital, 88046 Lamezia, Italy
| | - Irma Bisceglia
- Integrated Cardiology Services, Department of Cardio-Thoracic-Vascular, Azienda Ospedaliera San Camillo Forlanini, 00152 Rome, Italy
| | - Roberta Rossini
- Cardiology Unit, Ospedale Santa Croce e Carle, 12100 Cuneo, Italy;
| | - Pier Luigi Temporelli
- Division of Cardiac Rehabilitation, Istituti Clinici Scientifici Maugeri, IRCCS, 28010 Gattico-Veruno, Italy
| | | | | | - Sandro Gelsomino
- Cardiovascular Research Institute, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Carmine Riccio
- Cardiovascular Department, Sant’Anna e San Sebastiano Hospital, 81100 Caserta, Italy
| | - Massimo Grimaldi
- Department of Cardiology, General Regional Hospital “F. Miulli”, 70021 Bari, Italy
| | - Furio Colivicchi
- Clinical and Rehabilitation Cardiology Department, San Filippo Neri Hospital, ASL Roma 1, 00135 Roma, Italy
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Sarkar C, Wahlang JB, Syiem RP, Langstieh AJ, Das B, Surong M. Assessing the knowledge of medical undergraduates on oral anticoagulation therapy. J Family Med Prim Care 2023; 12:1824-1836. [PMID: 38024931 PMCID: PMC10657093 DOI: 10.4103/jfmpc.jfmpc_1727_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/23/2023] [Accepted: 01/31/2023] [Indexed: 12/01/2023] Open
Abstract
Objective Oral anticoagulant drugs, such as warfarin, are widely used for preventing and treating vascular and thromboembolic disease in patients with chronic atrial fibrillation, venous thrombosis, and coronary heart disease. As oral anticoagulant therapy has such a narrow therapeutic range, complications in administering these drugs can prove to have a detrimental effect on patients such as life-threatening bleeding might occur. It is therefore necessary to have an adequate knowledge about its actions and its interactions with other dietary factors or any other medication involved. This study was therefore formulated in order to evaluate the knowledge as well as to impart proper awareness to the medical undergraduate students about oral anticoagulation therapy such as to prevent any untoward situation that may arise from the process. Methods A cross-sectional descriptive study was used to assess the knowledge on oral anticoagulant therapy among the medical undergraduates of a tertiary care hospital. A pre-validated structured questionnaire consisting of 28 questions was adopted, and a separate questionnaire was used for each student. Timing of answering the questionnaire was set at 30 minutes. Scores were evaluated such as a correct answer was given a score of one and wrong answer awarded as zero. Adequate knowledge sore was set above 70% and inadequate knowledge at less than 40%. Results The response rate was found out to be 67.33% with gender distribution observed to be 71% females and 29% males. From the answers evaluated, overall average score of 67.3 ± 15.9 was obtained indicating that most of the respondents have adequate knowledge about the different mechanism, drug-drug interactions, drug-food interactions, and side effects of anticoagulant therapy, and 100% of the students are well aware about the complications and procedures involved to dissipate information about warfarin therapy. Conclusions Adequate exposure of students to clinical cases will further help them to focus on the importance of anticoagulation and strengthening their knowledge regarding anticoagulant drug therapy. This will influence the process of physician-patient communication for improving anticoagulation outcome.
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Affiliation(s)
- Chayna Sarkar
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
| | - Julie B. Wahlang
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
| | - Reuben P. Syiem
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
| | - Arky J. Langstieh
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
| | - Biswadeep Das
- Department of Pharmacology, AIIMS, Rishikesh, Uttarakhand, India
| | - Melam Surong
- Department of Pharmacology, North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences (NEIGRIHMS), Shillong, Meghalaya, India
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11
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Grymonprez M, Vanspranghe K, Steurbaut S, De Backer TL, Lahousse L. Non-vitamin K Antagonist Oral Anticoagulants (NOACs) Versus Warfarin in Patients with Atrial Fibrillation Using P-gp and/or CYP450-Interacting Drugs: a Systematic Review and Meta-analysis. Cardiovasc Drugs Ther 2023; 37:781-791. [PMID: 34637052 DOI: 10.1007/s10557-021-07279-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/06/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Non-vitamin K antagonist oral anticoagulants (NOACs) are excreted by P-glycoprotein (P-gp) and some are metabolized by CYP450 enzymes such as CYP3A4. Although fewer drug interactions are present with NOACs, it is unclear whether NOACs should also be preferred over vitamin K antagonists (VKAs) in patients with atrial fibrillation (AF) using pharmacokinetically interacting drugs. Therefore, the benefit-risk profile of NOACs versus VKAs was investigated in AF patients treated with P-gp and/or CYP450-interacting drugs. METHODS Using PubMed and Embase, randomized controlled trials and observational studies on the effectiveness and safety of NOACs versus VKAs in AF patients using P-gp and/or CYP450-interacting drugs were included. A meta-analysis was performed, calculating relative risks (RR) and 95% confidence intervals (CI) with the Mantel-Haenszel method. RESULTS Twelve studies were included, investigating 10,793 NOAC and 10,096 VKA users treated with P-gp/CYP3A4 inhibitors, whereas no studies on P-gp and/or CYP450-inducing drugs were identified. Compared to VKAs, NOACs were associated with a borderline non-significantly lower stroke or systemic embolism (stroke/SE) risk (RR 0.85, 95%CI (0.72-1.01)), significantly lower intracranial bleeding (RR 0.47, 95%CI (0.34-0.65)) and all-cause mortality risks (RR 0.87, 95%CI (0.79-0.95), but significantly higher gastrointestinal bleeding risk (RR 1.74, 95%CI (1.06-2.86)). Among AF patients using amiodarone, NOACs were associated with significantly lower stroke/SE (RR 0.71, 95%CI (0.54-0.93)) and intracranial bleeding risks (RR 0.51, 95%CI (0.29-0.88)), but significantly higher gastrointestinal bleeding risk (RR 2.15, 95%CI (1.24-3.72)) than VKAs. CONCLUSION The benefit-risk profile of NOACs compared to VKAs was preserved in AF patients using P-gp/CYP3A4 inhibitors, including amiodarone.
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Affiliation(s)
- Maxim Grymonprez
- Department of Bioanalysis, Pharmaceutical Care Unit, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium.
| | - Kevin Vanspranghe
- Department of Bioanalysis, Pharmaceutical Care Unit, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
| | - Stephane Steurbaut
- Centre for Pharmaceutical Research, Research Group of Clinical Pharmacology and Clinical Pharmacy, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090, Jette, Belgium
- Department of Hospital Pharmacy, UZ Brussel, Laarbeeklaan 101, 1090, Jette, Belgium
| | - Tine L De Backer
- Department of Cardiology, Ghent University Hospital, C. Heymanslaan 10, 9000, Ghent, Belgium
| | - Lies Lahousse
- Department of Bioanalysis, Pharmaceutical Care Unit, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium
- Department of Epidemiology, Erasmus Medical Center, Doctor Molewaterplein 40, 3015, Rotterdam, The Netherlands
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12
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Gerhart J, Draica F, Benigno M, Atkinson J, Reimbaeva M, Francis D, Baillon-Plot N, Sidhu GS, Damle BD. Real-World Evidence of the Top 100 Prescribed Drugs in the USA and Their Potential for Drug Interactions with Nirmatrelvir; Ritonavir. AAPS J 2023; 25:73. [PMID: 37468770 DOI: 10.1208/s12248-023-00832-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/07/2023] [Indexed: 07/21/2023] Open
Abstract
Nirmatrelvir (coadministered with ritonavir as PAXLOVIDTM) reduces the risk of COVID-19-related hospitalizations and all-cause death in individuals with mild-to-moderate COVID-19 at high risk of progression to severe disease. Ritonavir is coadministered as a pharmacokinetic enhancer. However, ritonavir may cause drug-drug interactions (DDIs) due to its interactions with various drug-metabolizing enzymes and transporters, including cytochrome P450 (CYP) 3A, CYP2D6, and P-glycoprotein transporters. To better understand the extent of DDIs (or lack thereof) of nirmatrelvir; ritonavir in a clinical setting, this study used real-world evidence (RWE) from the Optum Clinformatics Data Mart database to identify the top 100 drugs most commonly prescribed to US patients at high risk of progression to severe COVID-19 disease. The top 100 drugs were identified based on total counts associated with drugs prescribed to high-risk patients (i.e., ≥ 1 medical condition associated with an increased risk of severe COVID-19) who were continuously enrolled in the database throughout 2019 and had ≥ 1 prescription claim. Each of the 100 drugs was then assessed for DDI risk based on their metabolism, excretion, and transport pathways identified from available US prescribing and medical literature sources. Seventy drugs identified were not expected to have DDIs with nirmatrelvir; ritonavir, including many cardiovascular agents, anti-infectives, antidiabetic agents, and antidepressants. Conversely, 30 drugs, including corticosteroids, narcotic analgesics, anticoagulants, statins, and sedatives/hypnotics, were expected to cause DDIs with nirmatrelvir; ritonavir. This RWE analysis is complementary to the prescribing information and other DDI management tools for guiding healthcare providers in managing DDIs.
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Affiliation(s)
- Jacqueline Gerhart
- Pfizer Inc, Global Product Development, 500 Arcola Road, Collegeville, Pennsylvania, 19426, USA.
| | - Florin Draica
- Pfizer Inc, US Medical Affairs, Hospital, New York, New York, USA
| | | | | | - Maya Reimbaeva
- Pfizer Inc, Global Biometrics and Data Management, Groton, Connecticut, USA
| | - Domenick Francis
- Pfizer Inc, US Medical Affairs, Hospital, New York, New York, USA
| | | | | | - Bharat D Damle
- Pfizer Inc, Global Product Development, New York, New York, USA
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13
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Leite PM, Miranda APN, Gomes I, Rodrigues ML, Camargos LM, Amorim JM, Duarte RCF, Faraco AAG, Carvalho MG, Castilho RO. Antithrombotic potential of Lippia alba: A mechanistic approach. JOURNAL OF ETHNOPHARMACOLOGY 2023; 301:115744. [PMID: 36181984 DOI: 10.1016/j.jep.2022.115744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 09/14/2022] [Accepted: 09/16/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lippia alba (Mill.) N.E.Br. ex Britton & P. Wilson is traditionally used in Brazil as an adjunct in the relief of mild anxiety, as an antispasmodic, and as an antidyspeptic. This medicinal species was included in the Phytotherapeutic Form of the Brazilian Pharmacopeia 2nd edition (2021) and has already been described as the most used medicinal plant in a study with patients from an Anticoagulation Clinic in Brazil. Meanwhile, no studies were found that support the safety of the use of L. alba in patients using anticoagulants, a drug with several safety limitations. AIM OF THE STUDY Provide scientific evidence to ensure the safety of the concomitant use of L. alba and warfarin and support the management of these patients by evaluating its in vitro anticoagulant effect and chemical composition. And, as a timely complementation, evaluate the potential of this medicinal species in the development of new antithrombotics. METHODS The chemical profile of L. alba derivatives was analyzed by chromatographic methods such as Ultra-Performance Liquid Chromatography (UPLC) coupled with electrospray ionization mass spectrometry (ESI-MS), qualitative UPLC using Diode-Array Detection, and Thin Layer Chromatography. The anticoagulant activity was evaluated by the innovative Thrombin Generation Assay by Calibrated Automated Thrombogram method and using traditional coagulometric tests: prothrombin time, activated partial thromboplastin time, and plasma fibrinogen measurement. RESULTS Extracts and fractions prolonged the coagulation time in all the tests and reduced thrombin formation in thrombin generation assay. Coagulation times with the addition of ethanloic extract (2.26 mg/mL) was 17.78s, 46.43s and 14.25s respectively in prothrombin time, activated partial thromboplastin time and fibrinogren plasma measurement. In thrombin generation test, this same extract showed ETP as 323 nM/min compared to control (815 nM/min) with high tissue factor and 582 nM/min compared to control (1147 nM/min) using low tissue factor. Presence of flavonoids, phenylpropanoids, and triterpenes were confirmed by chromatographic methods and 13 compounds were identified by UPLC-ESI-MS. Based on these results and on the scientific literature, it is possible to propose that phenylpropanoids and flavonoids are related to the anticoagulant activity observed. CONCLUSION The results demonstrate the in vitro anticoagulant activity of L. alba, probably due to the activation of intrinsic and extrinsic pathways. It is concluded, then, that there is a potential for interaction, which needs to be further studied, between L. alba and warfarin. Also, this medicinal species shows a great potential for use in the development of new antithrombotics.
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Affiliation(s)
- Paula M Leite
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil.
| | - Ana P N Miranda
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Izabella Gomes
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Maria L Rodrigues
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Layla M Camargos
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana M Amorim
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Rita C F Duarte
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - André A G Faraco
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Maria G Carvalho
- Department of Clinical and Toxicological Analysis, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil
| | - Rachel O Castilho
- Department of Pharmaceutical Products, Faculty of Pharmacy, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, Minas Gerais, Brazil; Consórcio Acadêmico Brasileiro de Saúde Integrativa, CABSIN, Brazil.
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14
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Drug–drug interactions with direct oral anticoagulants: development of a consensus list for ambulatory care. Int J Clin Pharm 2022; 45:364-374. [PMID: 36446994 DOI: 10.1007/s11096-022-01511-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/18/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) can be involved in clinical relevant drug-drug interactions (DDIs) which may compromise safe and effective use. However, assessing the clinical relevance of DDIs with DOACs and managing these interactions optimally, can be challenging in clinical practice. AIM To develop a practice-oriented list of potentially clinically relevant DDIs with DOACs with corresponding management plans for which it is important to screen in ambulatory care. METHOD The RAND/UCLA appropriateness method was used to develop the DOACs DDI list. In a first step a preliminary list was compiled of potentially clinically relevant DDIs per DOAC (apixaban, dabigatran, edoxaban, rivaroxaban) using five reference sources. Subsequently, a two-step modified Delphi process involving a multidisciplinary panel (n = 10) including both pharmacists and physicians with expertise in all decision-making disciplines involved in care for patients using DOACs and with diversity of practice setting, was used to reach expert agreement on a final list of DDIs with corresponding management plans. RESULTS After a two-step consensus round, 71 DDIs for 20 different interacting drugs were included: five pharmacodynamic, nine pharmacokinetic inhibitor and six pharmacokinetic inducer interacting drugs. Considerations raised and discussed by the panellists were related to (1) the necessity of the interacting drug, (2) the manageability of the DDI (whether there are any alternatives), (3) the (clinical) evidence-base for the DDI and (4) the (potential) consequences of the DDI. CONCLUSION We developed a consensus list with specific and straightforward management plans on potentially clinically relevant DDIs with DOACs, for use in ambulatory care.
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15
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Vazquez SR, Wilson AS, Witt DM. Management of potential drug-drug interactions with nirmatrelvir-ritonavir and oral anticoagulants: a case series. J Thromb Thrombolysis 2022; 54:583-586. [PMID: 36253637 PMCID: PMC9579540 DOI: 10.1007/s11239-022-02707-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/04/2022] [Indexed: 11/24/2022]
Affiliation(s)
- Sara R Vazquez
- Department of Pharmacotherapy, University of Utah College of Pharmacy, 30 South 2000 East, Salt Lake City, UT, 84112, USA.
- University of Utah Health Thrombosis Clinic, 6056 South Fashion Square Drive, Suite 1200, Murray, UT, 84107, USA.
| | - Aaron S Wilson
- Department of Pharmacotherapy, University of Utah College of Pharmacy, 30 South 2000 East, Salt Lake City, UT, 84112, USA
| | - Daniel M Witt
- Department of Pharmacotherapy, University of Utah College of Pharmacy, 30 South 2000 East, Salt Lake City, UT, 84112, USA
- University of Utah Health Thrombosis Clinic, 6056 South Fashion Square Drive, Suite 1200, Murray, UT, 84107, USA
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16
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Harrigan AM, Rioux J, Shivakumar S. Practical Considerations for the Management of Cancer-Associated Venous Thromboembolism: A Guide for the General Oncology Practitioner. Curr Oncol 2022; 29:6419-6432. [PMID: 36135074 PMCID: PMC9497708 DOI: 10.3390/curroncol29090505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/31/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
Cancer-associated venous thromboembolism is a devastating complication of cancer and is associated with significant morbidity and mortality. The cornerstone of cancer-associated venous thromboembolism treatment is anticoagulation, and in recent years, there have been notable randomized clinical trials that have revealed insights into the efficacy and safety of direct oral anticoagulants and low-molecular-weight heparin in the treatment of cancer-associated thrombosis. Deciding on the ideal anticoagulation treatment plan for a patient with a cancer-associated thrombosis is a complex task that requires an understanding of clinical trial data, society guidelines, and, most importantly, consideration of many cancer-related, treatment-related, and patient-related factors. This article summarizes important factors to consider when deciding on anticoagulation therapy for a patient with cancer-associated thrombosis.
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Affiliation(s)
- Amye M. Harrigan
- Department of Medicine, Division of Hematology, Dalhousie University, Nova Scotia Health, Halifax, NS B3H 2Y9, Canada
| | - Josée Rioux
- Department of Pharmacy, Nova Scotia Health, Victoria General Site, Halifax, NS B3H 2Y9, Canada
| | - Sudeep Shivakumar
- Department of Medicine, Division of Hematology, Dalhousie University, Nova Scotia Health, Halifax, NS B3H 2Y9, Canada
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17
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Leonard CE, Brensinger CM, Bilker WB, Soprano SE, Dhopeshwarkar N, Hecht TEH, Kasner SE, Nutescu EA, Holbrook A, Carr M, Ashcroft DM, Chen C, Hennessy S. Thromboembolic Events in Users of Warfarin Treated with Different Skeletal Muscle Relaxants. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58091171. [PMID: 36143848 PMCID: PMC9501796 DOI: 10.3390/medicina58091171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022]
Abstract
Background and Objectives: Warfarin and a skeletal muscle relaxant are co-treatments in nearly a quarter-million annual United States (US) office visits. Despite international calls to minimize patient harm arising from anticoagulant drug interactions, scant data exist on clinical outcomes in real-world populations. We examined effects of concomitant use of warfarin and individual muscle relaxants on rates of hospitalization for thromboembolism among economically disadvantaged persons. Materials and Methods: Using 1999−2012 administrative data of four US state Medicaid programs, we conducted 16 retrospective self-controlled case series studies: half included concomitant users of warfarin + one of eight muscle relaxants; half included concomitant users of an inhaled corticosteroid (ICS) + one of eight muscle relaxants. The ICS analyses served as negative control comparisons. In each study, we calculated incidence rate ratios (IRRs) comparing thromboembolism rates in the co-exposed versus warfarin/ICS-only exposed person-time, adjusting for time-varying confounders. Results: Among ~70 million persons, we identified 8693 warfarin-treated subjects who concomitantly used a muscle relaxant, were hospitalized for thromboembolism, and met all other inclusion criteria. Time-varying confounder-adjusted IRRs ranged from 0.31 (95% confidence interval: 0.13−0.77) for metaxalone to 3.44 (95% confidence interval: 1.53−7.78) for tizanidine. The tizanidine finding was robust after quantitatively adjusting for negative control ICS findings, and in numerous prespecified secondary analyses. Conclusions: We identified a potential >3-fold increase in the rate of hospitalized thromboembolism in concomitant users of warfarin + tizanidine vs. warfarin alone. Alternative explanations for this finding include confounding by indication, a native effect of tizanidine, or chance.
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Affiliation(s)
- Charles E. Leonard
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Correspondence: ; Tel.: +1-215-573-2663; Fax: +1-215-573-5315
| | - Colleen M. Brensinger
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Warren B. Bilker
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Neuropsychiatry Section, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Samantha E. Soprano
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Neil Dhopeshwarkar
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Todd E. H. Hecht
- Division of General Internal Medicine, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Scott E. Kasner
- Division of Vascular Neurology, Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Edith A. Nutescu
- Department of Pharmacy Practice and Center for Pharmacoepidemiology and Pharmacoeconomic Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Anne Holbrook
- Division of Clinical Pharmacology and Toxicology, Department of Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON L8S 4L8, Canada
| | - Matthew Carr
- Center for Pharmacoepidemiology and Drug Safety, Division of Pharmacy & Optometry, School of Health Sciences, University of Manchester, Manchester M13, UK
| | - Darren M. Ashcroft
- Center for Pharmacoepidemiology and Drug Safety, Division of Pharmacy & Optometry, School of Health Sciences, University of Manchester, Manchester M13, UK
| | - Cheng Chen
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sean Hennessy
- Center for Real-World Effectiveness and Safety of Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Group based trajectory modeling to assess adherence to oral anticoagulants among atrial fibrillation patients with comorbidities: a retrospective study. Int J Clin Pharm 2022; 44:966-974. [PMID: 35776377 DOI: 10.1007/s11096-022-01417-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/19/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Poor adherence to oral anticoagulants is a significant problem in atrial fibrillation (AF) patients with comorbidities as it increases the risk for cardiac and thromboembolic events. AIM The primary objective was to evaluate adherence to direct oral anticoagulants (DOACs) or warfarin using group-based trajectory modeling (GBTM). The secondary objective was to identify the predictors of adherence to oral anticoagulants. Finally, to report the drug interactions with DOACs/warfarin. METHOD This retrospective study was conducted among continuously enrolled Medicare Advantage Plan members from January 2016-December 2019. AF patients with comorbid hypertension, diabetes and hyperlipidemia using warfarin/DOACs were included. Monthly adherence to DOAC/warfarin was measured using proportion of days covered (PDC) and then modeled in a logistic GBTM to identify the distinct patterns of adherence. Logistic regression model was conducted to identify the predictors of adherence to oral anticoagulants adjusting for all baseline characteristics. Concomitant use of DOACs/warfarin with CYP3A4,P-gp inhibitors were measured. RESULTS Among 317 patients, 137 (43.2%) and 79 (24.9%) were DOAC, and warfarin users, respectively. The adherence trajectory model for DOACs included gradual decline (40.4%), adherent (38.8%), and rapid decline (20.8%). The adherence trajectories for warfarin adherence included gradual decline (8.9%), adherent (59.4%), and gaps in adherence (21.7%). Predictors of adherence included type of oral anticoagulant, stroke risk score, low-income subsidy, and baseline PDC. CYP3A4,P-gp drugs were co-administered with DOACs /warfarin resulting in adverse events. CONCLUSION Adherence to oral anticoagulants is suboptimal. Interventions tailored according to past adherence trajectories may be effective in improving patient's adherence.
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Bonnichsen M, Stoklosa T, Bowen D, Majumdar A. Safety first, a harmful interaction between rivaroxaban and berberine. Intern Med J 2022; 52:887-888. [PMID: 35538009 DOI: 10.1111/imj.15774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 02/10/2022] [Accepted: 03/27/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Mark Bonnichsen
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Ted Stoklosa
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - David Bowen
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Avik Majumdar
- AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia.,Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
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20
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Feng L, Tian X, Yao D, Yu Z, Huo X, Tian Z, Ning J, Cui J, James TD, Ma X. A practical strategy to develop isoform-selective near-infrared fluorescent probes for human cytochrome P450 enzymes. Acta Pharm Sin B 2022; 12:1976-1986. [PMID: 35847500 PMCID: PMC9279627 DOI: 10.1016/j.apsb.2021.11.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/20/2021] [Accepted: 11/16/2021] [Indexed: 01/08/2023] Open
Abstract
Currently, the development of selective fluorescent probes toward targeted enzymes is still a great challenge, due to the existence of numerous isoenzymes that share similar catalytic capacity. Herein, a double-filtering strategy was established to effectively develop isoenzyme-specific fluorescent probe(s) for cytochrome P450 (CYP) which are key enzymes involving in metabolism of endogenous substances and drugs. In the first-stage of our filtering approach, near-infrared (NIR) fluorophores with alkoxyl group were prepared for the screening of CYP-activated fluorescent substrates using a CYPs-dependent incubation system. In the second stage of our filtering approach, these candidates were further screened using reverse protein-ligand docking to effectively determine CYP isoenzyme-specific probe(s). Using our double-filtering approach, probes S9 and S10 were successfully developed for the real-time and selective detection of CYP2C9 and CYP2J2, respectively, to facilitate high-throughput screening and assessment of CYP2C9-mediated clinical drug interaction risks and CYP2J2-associated disease diagnosis. These observations suggest that our strategy could be used to develop the isoform-specific probes for CYPs.
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Key Words
- Biomarker analysis
- CYP, cytochrome P450
- Cytochrome P450
- DDI, drug–drug interactions
- DNZ, danazol
- Drug–drug interactions
- Enzyme activity bioimaging
- FVT, fluvastatin
- Fluorescent probe
- HLM, human liver microsome
- ICT, intramolecular charge transfer
- LC‒MS/MS, liquid chromatography‒tandem mass spectrometry
- MCN, miconazole
- MD, molecular dynamics
- MM-GBSA, binding free energy calculation
- NADPH, nicotinamide-adenine dinucleotide phosphate
- NIR, near-infrared
- PT, prothrombin time
- RLX, raloxifene
- RMSD, root-mean square deviation
- SCN, sulconazole
- SPN, sulfaphenazole
- WAR, warfarin
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Affiliation(s)
- Lei Feng
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Xiangge Tian
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Dahong Yao
- School of Pharmaceutical Sciences, Shenzhen Technology University, Shenzhen 518060, China
| | - Zhenlong Yu
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Xiaokui Huo
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Zhenhao Tian
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Jing Ning
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
| | - Jingnan Cui
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Tony D. James
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Xiaochi Ma
- Second Affiliated Hospital, Dalian Medical University, Dalian 116023, China
- College of Pharmacy, the National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian 116044, China
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21
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Rabea EM, Abbas KS, Awad DM, Elgoweini NH, El-Sakka AA, Mahmoud NH, Abdelazeem B. Does ramadan fasting affect the therapeutic and clinical outcomes of warfarin? a systematic review and meta-analysis. Eur J Clin Pharmacol 2022; 78:755-763. [PMID: 35179616 DOI: 10.1007/s00228-022-03281-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/17/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Warfarin's therapeutic effect is affected by many factors, including diet modifications. The impact of Ramadan fasting on warfarin is controversial. The aim of this systematic review and meta-analysis was to investigate the effect of Ramadan fasting on patients taking warfarin. METHODS A literature search was done in PubMed, WOS, Scopus, and Embase from inception to May 24, 2021. All relevant studies measuring the international normalized ratio (INR), time in therapeutic range (TTR), or the number of patients within therapeutic range before, during, and after Ramadan were assessed by full-text screening for achieving all of the inclusion criteria. We used the Newcastle-Ottawa Scale for quality assessment and RevMan 5.4 software for meta-analysis. RESULTS A total of five studies with 446 patients were included in the meta-analysis. The patients served as their own control. Our pooled analyses showed no significant difference during Ramadan compared to pre-Ramadan (MD: 0.08; 95% CI: - 0.00, 0.15; P = 0.06) and post-Ramadan (MD: - 0.00; 95% CI: - 0.14, 0.14; P = 1.00, respectively). There was only a significant increase in the risk ratio of supratherapeutic INR when comparing post-Ramadan vs. pre-Ramadan (RR: 1.69; 95% CI: 1.22, 2.33; P = 0.001). However, there was no significant risk for supratherapeutic INR during Ramadan compared to pre-Ramadan or post-Ramadan; the number of patients within the therapeutic range of INR during Ramadan compared to pre-Ramadan; and TTR during Ramadan, pre-Ramadan, and post-Ramadan. CONCLUSION Ramadan fasting did not affect INR level, TTR, or the number of patients within the therapeutic range before, during, and after Ramadan. However, there was a possibility of achieving a supratherapeutic INR post-Ramadan compared to pre-Ramadan. Therefore, INR monitoring and warfarin dose adjustments accordingly are recommended after Ramadan.
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Affiliation(s)
| | | | - Dina M Awad
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | | | - Nada H Mahmoud
- Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Basel Abdelazeem
- McLaren Health Care, Flint, MI, USA. .,Michigan State University, East Lansing, MI, USA.
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22
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Lee JY, Oh IY, Lee JH, Kim S, Cho J, Park CH, Yoo S, Bang SM. Drug-drug interactions in atrial fibrillation patients receiving direct oral anticoagulants. Sci Rep 2021; 11:22403. [PMID: 34789799 PMCID: PMC8599657 DOI: 10.1038/s41598-021-01786-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Polypharmacy is common in patients with atrial fibrillation (AF), making these patients vulnerable to the occurrence of potential drug-drug interactions (DDIs). We assessed the risk of ischemic stroke and major bleeding in the context of concomitant treatment with potential DDIs in patients with AF prescribed direct oral anticoagulants (DOACs). Using the common data model (CDM) based on an electronic health record (EHR) database, we included new users of DOACs from among patients treated for AF between January 2014 and December 2017 (n = 1938). The median age was 72 years, and 61.8% of the patients were males, with 28.2% of the patients having a CHA2DS2-VASc score in category 0–1, 49.4% in category 2–3, and 22.4% in category ≥ 4. The CHA2DS2-VASc score was significantly associated with ischemic stroke occurrence and hospitalization for major bleeding. Multiple logistic regression analysis showed that increased risk of ischemic stroke and hospitalization for major bleeding was associated with the number of DDIs regardless of comorbidities: ≥ 2 DDIs was associated with ischemic stroke (OR = 18.68; 95% CI, 6.22–55.27, P < 0.001) and hospitalization for major bleeding (OR = 5.01; 95% CI, 1.11–16.62, P < 0.001). DDIs can cause reduced antithrombotic efficacy or increased risk of bleeding in AF patients prescribed DOACs.
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Affiliation(s)
- Ji Yun Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-Si, 13620, Gyeonggi-di, Republic of Korea
| | - Il-Young Oh
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-Si, 13620, Gyeonggi-di, Republic of Korea
| | - Ju-Hyeon Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-Si, 13620, Gyeonggi-di, Republic of Korea
| | - Seok Kim
- Office of eHealth Research and Business, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jihoon Cho
- Office of eHealth Research and Business, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Charg Hyun Park
- Office of eHealth Research and Business, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Sooyoung Yoo
- Office of eHealth Research and Business, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Soo-Mee Bang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam-Si, 13620, Gyeonggi-di, Republic of Korea.
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23
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Halkin H. Pharmacokinetic Drug Interactions of the New Oral Anticoagulants Revisited. Clin Pharmacol Ther 2021; 112:208-209. [PMID: 34787312 DOI: 10.1002/cpt.2447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/08/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Hillel Halkin
- Institute of Clinical Pharmacology and Toxicology, Sheba Medical Center, Tel Hashomer, Israel
- Tel Aviv University School of Medicine, Tel Aviv, Israel
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24
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Sennesael AL, Larock AS, Hainaut P, Lessire S, Hardy M, Douxfils J, Spinewine A, Mullier F. The Impact of Strong Inducers on Direct Oral Anticoagulant Levels. Am J Med 2021; 134:1295-1299. [PMID: 34181907 DOI: 10.1016/j.amjmed.2021.06.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 06/13/2021] [Indexed: 11/15/2022]
Abstract
PURPOSE The concomitant use of direct oral anticoagulants (DOAC) and strong P-glycoprotein (P-gp) and cytochrome P450 3A4 (CYP3A4) inducers may lead to reduced DOAC levels and therapeutic failure. This study aimed to describe DOAC concentrations in patients receiving strong P-gp and CYP3A4 inducers, in relation to individual risk factors for high or low DOAC levels. METHODS We retrospectively identified hospitalized patients simultaneously receiving a DOAC and carbamazepine, phenobarbital, phenytoin, or rifampicin between 2016 and 2021. Among them, patients who underwent DOAC measurement at steady state were included. DOAC peak or trough levels were compared with on-therapy ranges observed in pivotal trials. Individual risk factors for high or low DOAC levels were identified. RESULTS We included 17 patients (median age 75 years), mainly receiving apixaban and carbamazepine. For 5 patients (29%), DOAC trough or peak level was below the expected range. Among the remaining 12 patients, 8 had at least one measurement in the lower quartile of the range. The median number of risk factors for drug accumulation was 0 (range 0-1) in patients with ≥1 measurement below the range and 2 (range 0-3) in other patients. DOAC measurement led to treatment adjustments in 9 patients (DOAC dose increase or switch). CONCLUSION Our data suggest a significant risk of reduced DOAC levels in patients taking strong P-gp and CYP3A4 inducers, especially those without risk factors for drug accumulation. DOAC measurement could help manage this relevant drug-drug interaction.
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Affiliation(s)
- Anne-Laure Sennesael
- Department of Pharmacy, Centre Hospitalier Universitaire (CHU) UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for Life Sciences (NARILIS), Université catholique de Louvain, Yvoir, Belgium; Clinical Pharmacy Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium.
| | - Anne-Sophie Larock
- Department of Pharmacy, Centre Hospitalier Universitaire (CHU) UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for Life Sciences (NARILIS), Université catholique de Louvain, Yvoir, Belgium
| | - Philippe Hainaut
- Department of Internal Medicine, Cliniques Universitaires Saint-Luc, Brussels, Université catholique de Louvain, Belgium
| | - Sarah Lessire
- Department of Anesthesiology, CHU UCL Namur, NTHC, NARILIS, Université catholique de Louvain, Yvoir, Belgium
| | - Michael Hardy
- Department of Anesthesiology, CHU UCL Namur, NTHC, NARILIS, Université catholique de Louvain, Yvoir, Belgium; Hematology Laboratory, CHU UCL Namur, NTHC, NARILIS, Université catholique de Louvain, Yvoir, Belgium
| | - Jonathan Douxfils
- Department of Pharmacy, NTHC, NARILIS, Université de Namur, Namur, Belgium; Qualiblood s.a., Namur, Belgium
| | - Anne Spinewine
- Department of Pharmacy, Centre Hospitalier Universitaire (CHU) UCL Namur, Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for Life Sciences (NARILIS), Université catholique de Louvain, Yvoir, Belgium; Clinical Pharmacy Research Group, Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium
| | - François Mullier
- Hematology Laboratory, CHU UCL Namur, NTHC, NARILIS, Université catholique de Louvain, Yvoir, Belgium
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25
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Kalhor HR, Taghikhani E. Probe into the Molecular Mechanism of Ibuprofen Interaction with Warfarin Bound to Human Serum Albumin in Comparison to Ascorbic and Salicylic Acids: Allosteric Inhibition of Anticoagulant Release. J Chem Inf Model 2021; 61:4045-4057. [PMID: 34292735 DOI: 10.1021/acs.jcim.1c00352] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The release of anticoagulant drugs such as warfarin from human serum albumin (HSA) has been important not only mechanistically but also clinically for patients who take multiple drugs simultaneously. In this study, the role of some commonly used drugs, including s-ibuprofen, ascorbic acid, and salicylic acid, was investigated in the release of warfarin bound to HSA in silico. The effects of the aforementioned drugs on the HSA-warfarin complex were investigated with molecular dynamics (MD) simulations using two approaches; in the first perspective, molecular docking was used to model the interaction of each drug with the HSA-warfarin complex, and in the second approach, drugs were positioned randomly and distant from the binary complex (HSA-warfarin) in a physiologically relevant concentration. The results obtained from both approaches indicated that s-ibuprofen and ascorbic acid both displayed allosteric effects on the release of warfarin from HSA. Although ascorbic acid aided in warfarin release, leading to destabilization of HSA, ibuprofen demonstrated a stabilizing effect on releasing the anticoagulant drug through several noncovalent interactions, including hydrophobic, electrostatic, and hydrogen-bonding interactions with the protein. The calculated binding free energy and energy contribution of involved residues using the molecular mechanics-Poisson Boltzmann surface area (MM-PBSA) method, along with root mean square deviation (RMSD) values, protein gyration, and free energy surface (FES) mapping of the protein, provided valuable details on the nature of the interactions of each drug on the release of warfarin from HSA. These results can provide important information on the mechanisms of anticoagulant release that has not been revealed in molecular details previously.
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Affiliation(s)
- Hamid Reza Kalhor
- Biochemistry Research Laboratory, Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
| | - Elham Taghikhani
- Biochemistry Research Laboratory, Chemistry Department, Sharif University of Technology, P.O. Box 11155-3516, Tehran, Iran
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26
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Leite PM, Freitas A, Amorim J, Figueiredo RCD, Bertolucci S, Faraco A, Martins M, Carvalho MG, Castilho R. In vitro anticoagulant activity of selected medicinal plants: potential interactions with warfarin and development of new anticoagulants. J Basic Clin Physiol Pharmacol 2021; 33:499-510. [PMID: 34273917 DOI: 10.1515/jbcpp-2021-0079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/28/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVES Warfarin is the most widely used anticoagulant in the world, but it has several limitations including its narrow therapeutic range, need for dose adjustment and high potential for interactions. The simultaneous use of other drugs or even medicinal plants and certain foods could interfere with its therapeutic activity. In this context, this study aims to investigate the in vitro anticoagulant potential and phytochemical constitution of 17 plants selected from a previous clinical cross-sectional study (2014), that investigated the habits of plant utilization among patients taking warfarin. METHODS Ethanol extracts and essential oils were evaluated, in vitro, as to their effect in the prothrombin time (PT) and activated partial thromboplastin time (aPTT) tests. Four species that presented aPTT >50 s were selected for phytochemical evaluation. RESULTS Thirteen of the 17 plants selected demonstrated a significant anticoagulant effect in at least one of the evaluated parameters. Citrus sinensis (PT=14.75 and aPTT=53.15), Mentha crispa (aPTT=51.25), Mikania laevigata (PT=14.90 and aPTT=52.10), and Nasturtium officinale (aPTT=50.55) showed greater anticoagulant potential compared to normal plasma pool (PT=12.25 and aPTT=37.73). Chemical profiles of these four species were obtained, and certain compounds were identified: rosmarinic acid from M. crispa and isoorientin from N. officinale. CONCLUSIONS Thus, the results of this study could be a useful indicator for clinical practice towards the possibility of interaction between these plants and anticoagulants, although further clinical research is needed taking into consideration the limitations of in vitro studies. These findings also suggest that further research into the action of these plants could be of real clinical value in identifying potential alternative anticoagulant therapies.
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Affiliation(s)
| | - Aline Freitas
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana Amorim
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - André Faraco
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Maria Martins
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Maria G Carvalho
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rachel Castilho
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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27
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Smythe MA, Burns C, Liu Q, Garwood CL. Potential Dexamethasone-Direct Oral Anticoagulant Drug Interaction: Is This a Concern in COVID? Ann Pharmacother 2021; 56:319-329. [PMID: 34137279 DOI: 10.1177/10600280211025042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE To evaluate the literature on a potential dexamethasone-direct oral anticoagulant (DOAC) drug interaction and provide management considerations with COVID hypercoagulability. DATA SOURCES A search of EMBASE, PubMed, and Google Scholar (January 1990 to May 2021), limited to the English language, using applicable search terms resulted in 137 articles, with 21 relevant articles included. Regulatory agency and clinical guidance documents were also reviewed. STUDY SELECTION AND DATA EXTRACTION Included articles describe in vitro or in vivo animal or human data for dexamethasone induction of cytochrome P450 (CYP) 3A4 or P-glycoprotein (P-gp). DATA SYNTHESIS Dexamethasone has the potential to interact with the DOACs via CYP3A4 and/or P-gp induction. Only apixaban and rivaroxaban have CYP3A4 metabolism. Dexamethasone can increase CYP3A4 activity by up to 70% and reduce the area under the concentration-time curve (AUC) of CYP3A4 substrates by >40%, which is consistent with criteria for a weak CYP inducer. In rodents, dexamethasone P-gp induction is associated with AUC reductions of 20% to 50%. Human data are lacking. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE Severe COVID-19 infection is associated with hypercoagulability. Although heparins are the preferred anticoagulants for hospitalized COVID-19 patients, DOACs are being utilized. Dexamethasone is recommended for hospitalized COVID-19 patients requiring supplemental oxygen. The concurrent use of dexamethasone and apixaban or rivaroxaban in such patients carries the potential for reduced anticoagulant effect during a state of heightened thrombotic risk. CONCLUSIONS Concurrent use of dexamethasone and apixaban or rivaroxaban in hospitalized COVID-19 patients with laboratory evidence of COVID coagulopathy should be avoided until higher-quality data are available.
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Affiliation(s)
- Maureen A Smythe
- Wayne State University, Detroit, MI, USA.,Beaumont Hospital, Royal Oak, MI, USA
| | | | | | - Candice L Garwood
- Wayne State University, Detroit, MI, USA.,Detroit Medical Center, MI, USA
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28
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Kirschner M, do Ó Hartmann N, Parmentier S, Hart C, Henze L, Bisping G, Griesshammer M, Langer F, Pabinger-Fasching I, Matzdorff A, Riess H, Koschmieder S. Primary Thromboprophylaxis in Patients with Malignancies: Daily Practice Recommendations by the Hemostasis Working Party of the German Society of Hematology and Medical Oncology (DGHO), the Society of Thrombosis and Hemostasis Research (GTH), and the Austrian Society of Hematology and Oncology (ÖGHO). Cancers (Basel) 2021; 13:2905. [PMID: 34200741 PMCID: PMC8230401 DOI: 10.3390/cancers13122905] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 12/20/2022] Open
Abstract
Patients with cancer, both hematologic and solid malignancies, are at increased risk for thrombosis and thromboembolism. In addition to general risk factors such as immobility and major surgery, shared by non-cancer patients, cancer patients are exposed to specific thrombotic risk factors. These include, among other factors, cancer-induced hypercoagulation, and chemotherapy-mediated endothelial dysfunction as well as tumor-cell-derived microparticles. After an episode of thrombosis in a cancer patient, secondary thromboprophylaxis to prevent recurrent thromboembolism has long been established and is typically continued as long as the cancer is active or actively treated. On the other hand, primary prophylaxis, even though firmly established in hospitalized cancer patients, has only recently been studied in ambulatory patients. This recent change is mostly due to the emergence of direct oral anticoagulants (DOACs). DOACs have a shorter half-life than vitamin K antagonists (VKA), and they overcome the need for parenteral application, the latter of which is associated with low-molecular-weight heparins (LMWH) and can be difficult for the patient to endure in the long term. Here, first, we discuss the clinical trials of primary thromboprophylaxis in the population of cancer patients in general, including the use of VKA, LMWH, and DOACs, and the potential drug interactions with pre-existing medications that need to be taken into account. Second, we focus on special situations in cancer patients where primary prophylactic anticoagulation should be considered, including myeloma, major surgery, indwelling catheters, or immobilization, concomitant diseases such as renal insufficiency, liver disease, or thrombophilia, as well as situations with a high bleeding risk, particularly thrombocytopenia, and specific drugs that may require primary thromboprophylaxis. We provide a novel algorithm intended to aid specialists but also family practitioners and nurses who care for cancer patients in the decision process of primary thromboprophylaxis in the individual patient.
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Affiliation(s)
- Martin Kirschner
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany; (M.K.); (N.d.Ó.H.)
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), 52074 Aachen, Germany
| | - Nicole do Ó Hartmann
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany; (M.K.); (N.d.Ó.H.)
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), 52074 Aachen, Germany
| | - Stefani Parmentier
- Oncology and Hematology, Tumor Center, St. Claraspital, 4058 Basel, Switzerland;
| | - Christina Hart
- Department of Hematology and Oncology, Internal Medicine III, University Hospital Regensburg, 93053 Regensburg, Germany;
| | - Larissa Henze
- Department of Medicine, Clinic III—Hematology, Oncology, Palliative Medicine, Rostock University Medical Center, 18057 Rostock, Germany;
| | - Guido Bisping
- Department of Medicine I, Mathias Spital Rheine, 48431 Rheine, Germany;
| | - Martin Griesshammer
- University Clinic for Hematology, Oncology, Haemostaseology and Palliative Care, Johannes Wesling Medical Center Minden, University of Bochum, 32429 Minden, Germany;
| | - Florian Langer
- II.Medical Clinic and Polyclinic, Center for Oncology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany;
| | - Ingrid Pabinger-Fasching
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria;
| | - Axel Matzdorff
- Department of Internal Medicine II, Asklepios Clinic Uckermark, 16303 Schwedt, Germany;
| | - Hanno Riess
- Medical Department, Division of Oncology and Hematology, Campus Charité Mitte, Charité Universitätsmedizin Berlin, 13353 Berlin, Germany;
| | - Steffen Koschmieder
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, 52074 Aachen, Germany; (M.K.); (N.d.Ó.H.)
- Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), 52074 Aachen, Germany
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29
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An International Consensus List of Potentially Clinically Significant Drug-Drug Interactions in Older People. J Am Med Dir Assoc 2021; 22:2121-2133.e24. [PMID: 33901428 DOI: 10.1016/j.jamda.2021.03.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 01/09/2023]
Abstract
OBJECTIVES We aimed to establish an explicit list of potentially clinically significant drug-drug interactions (DDIs) in people aged ≥65 years. DESIGN A preliminary list of potentially clinically significant DDIs was compiled, based on 154 DDIs identified from literature review. Subsequently, a 2-round online Delphi survey was undertaken with a multidisciplinary expert panel. A consensus meeting and a final round were conducted to validate the final DDI list and the scope of information provided. SETTING AND PARTICIPANTS Twenty nine experts, including geriatricians and clinical pharmacists from 8 European countries. MEASURES For each DDI, in the first 2 rounds, experts were asked to score the severity of potential harm on a 5-point Likert-type scale. DDIs were directly included on the final list if the median score was 4 (major) or 5 (catastrophic). DDIs with a median score of 3 (moderate) were discussed at a consensus meeting and included if ≥75% of participants voted for inclusion in the final round. RESULTS Consensus was achieved on 66 potentially clinically significant DDIs (28 had a median score of 4/5 and 48 of 3 in the Delphi survey). Most concerned cardiovascular, antithrombotic, and central nervous system drugs. The final list includes information on the mechanism of interaction, harm, and management. Treatment modification is recommended for three-quarters of DDIs. CONCLUSION AND IMPLICATIONS We validated a list of potentially clinically significant DDIs in older people, which can be used in clinical practice and education to support identification and management of DDIs or to assess prevalence in epidemiologic and intervention studies.
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30
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Direct oral anticoagulants and cancer-associated VTE: good for all, or just some? Blood 2021; 136:669-673. [PMID: 32575112 DOI: 10.1182/blood.2019004177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 06/03/2020] [Indexed: 02/08/2023] Open
Abstract
Venous thromboembolism (VTE) is associated with significant mortality and morbidity in patients with cancer. Therefore, tailoring anticoagulation is of utmost importance to decrease the risk of recurrent VTE while minimizing the risk of bleeding. Direct oral anticoagulants have been recently compared with low-molecular-weight heparin for the management of acute cancer-associated thrombosis. Although direct oral anticoagulants are a welcome addition, clinicians need to incorporate clinical characteristics, drug-drug interactions, and patient preference in decision making.
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31
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Burato S, Leonardi L, Antonazzo IC, Raschi E, Ajolfi C, Baraghini M, Chiarello A, Delmonte V, Di Castri L, Donati M, Fadda A, Fedele D, Ferretti A, Gabrielli L, Gobbi S, Lughi S, Mazzari M, Pieraccini F, Renzetti A, Russi E, Scanelli C, Zanetti B, Poluzzi E. Comparing the Prevalence of Polypharmacy and Potential Drug-Drug Interactions in Nursing Homes and in the Community Dwelling Elderly of Emilia Romagna Region. Front Pharmacol 2021; 11:624888. [PMID: 33628186 PMCID: PMC7898059 DOI: 10.3389/fphar.2020.624888] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 12/21/2020] [Indexed: 12/03/2022] Open
Abstract
Backround: We aimed at assessing the prevalence of polypharmacy and potential drug-drug interactions (DDIs) with clinical relevance in elderly patient on Emilia Romagna area. Both outpatients and residents in nursing homes were assessed, with only partially overlapping strategies. Methods: We defined a list of 190 pairs of potentially interacting drugs, based on literature appraisal and availability of therapeutic alternatives. January-June 2018 data on drug use in patients over 65 years-old were collected from nine Local Health Authorities of Emilia Romagna: data on community-dwelling subjects were extracted from archives of reimbursed prescriptions, while drug use in a sample of nursing homes was recorded from clinical charts in one index day within the same semester. The frequency of polypharmacy (at least five or at least 10 concurrent drugs) and of each DDI was calculated. Results: In line with different rates of polypharmacy (80% vs 16%), the risk of exposure to at least one interaction was 53.7% in nursing homes and 26.4% in outpatients. Among DDIs, in nursing homes antidepressants—anxiolytics (11.9%) ranked first, followed by antidepressants—aspirin (7.4%). In outpatients, ACE-inhibitors—non-steroidal anti-inflammatory drugs (NSAIDs) reached 7.2% followed by the calcium channel blockers—α-blockers (2.4%). Discussion: Polypharmacy and risk of DDIs appeared very different in the two settings, due to both technical and clinical reasons. In order to reduce use of benzodiazepines, NSAIDs, antidepressants and relevant DDIs, 1) defining alternative options for pain relief in elderly outpatients, and 2) implementing non-pharmacological management of insomnia and anxiety in nursing homes should be prioritized.
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Affiliation(s)
- Sofia Burato
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - Luca Leonardi
- Post Graduate School of Hospital Pharmacy, Department of Pharmacy, University of Pisa, Pisa, Italy
| | | | - Emanuel Raschi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | | | - Manuela Baraghini
- Local Health Authority of Romagna (Forlì and Cesena Units), Emilia-Romagna, Italy
| | - Antonella Chiarello
- Post Graduate School of Hospital Pharmacy, Department of Pharmacy, University of Pisa, Pisa, Italy.,Local Health Authority of Imola, Imola, Italy
| | | | | | - Monia Donati
- Local Health Authority of Bologna, Bologna, Italy
| | | | | | | | - Laura Gabrielli
- Local Health Authority of Reggio Emilia, Reggio Emilia, Italy
| | - Silvia Gobbi
- Local Health Authority of Romagna (Forlì and Cesena Units), Emilia-Romagna, Italy
| | - Sereno Lughi
- Local Health Authority of Romagna (Forlì and Cesena Units), Emilia-Romagna, Italy
| | | | - Fabio Pieraccini
- Local Health Authority of Romagna (Forlì and Cesena Units), Emilia-Romagna, Italy
| | | | - Elsa Russi
- Local Health Authority of Parma, Parma, Italy
| | | | | | - Elisabetta Poluzzi
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy.,Centre of Studies and Research on the Elderly, University of Bologna, Bologna, Italy
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Prevalence and Clinical Significance of Drug-Drug and Drug-Dietary Supplement Interactions among Patients Admitted for Cardiothoracic Surgery in Greece. Pharmaceutics 2021; 13:pharmaceutics13020239. [PMID: 33572247 PMCID: PMC7914879 DOI: 10.3390/pharmaceutics13020239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Drug interactions represent a major issue in clinical settings, especially for critically ill patients such as those with cardiovascular disease (CVD) who require cardiothoracic surgery (CTS) and receive a high number of different medications. Methods: A cross-sectional study aimed at evaluating the exposure and clinical significance of drug–drug (DDIs) and drug–dietary supplement interactions (DDSIs) in patients admitted for CTS in the University Hospital of Crete Greece. DDIs were evaluated regarding underlying pharmacological mechanisms upon admission, preoperation, postoperation, and discharge from CTS clinic. Additionally, upon admission, the use of dietary supplements (DSs) and if patients had informed their treating physician that they were using these were recorded with subsequent analysis of potential DDSIs with prescribed medications. Results: The study employed 76 patients who were admitted for CTS and accepted to participate. Overall, 166 unique DDIs were identified, with 32% of them being related to pharmacokinetic (PK) processes and the rest (68%) were related to possible alterations of pharmacodynamic (PD) action. CVD medications and drugs for central nervous system disorders were the most frequently interacting medications. In total, 12% of the identified DDIs were of serious clinical significance. The frequency of PK-DDIs was higher during admission and discharge, whereas PD-DDIs were mainly recorded during pre- and postoperation periods. Regarding DS usage, 60% of patients were using DSs and perceived them as safe, and the majority had not informed their treating physician of this or sought out medical advice. Analysis of medical records showed 30 potential combinations with prescribed medications that could lead in DDSIs due to modulation of PK or PD processes, and grapefruit juice consumption was involved in 38% of them. Conclusions: An increased burden of DDIs and DDSIs was identified mostly upon admission for patients in CTS clinics in Greece. Healthcare providers, especially prescribing physicians in Greece, should always take into consideration the possibility of DDIs and the likely use of DS products by patients to promote their well-being; this should only be undertaken after receiving medical advice and an evidenced-based evaluation.
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Mitsuboshi S, Niimura T, Zamami Y, Ishizawa K. Differences in risk factors for anticoagulant-related nephropathy between warfarin and direct oral anticoagulants: Analysis of the Japanese adverse drug event report database. Br J Clin Pharmacol 2020; 87:2977-2981. [PMID: 33270271 DOI: 10.1111/bcp.14688] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/28/2020] [Accepted: 11/29/2020] [Indexed: 11/28/2022] Open
Abstract
Limited information is available on anticoagulant-related nephropathy (ARN). We therefore reviewed the Japanese Adverse Drug Event Report database to investigate kidney injury (KI) in patients administered warfarin or direct oral anticoagulants (DOACs) and sought to clarify the risk factors for ARN. KI risk in warfarin users was associated with male sex (odds ratio [OR], 1.70; 95% confidence interval [CI], 1.35-2.13; P < .01) and age ≥80 years (OR, 1.35; 95% CI, 1.07-1.72; P = .01). KI risk in DOAC users was associated with body weight ≥80 kg (OR, 1.60; 95% CI, 1.01-2.53; P = .04) and use of dabigatran (OR, 1.61; 95% CI, 1.09-2.37; P < .01). Our findings suggest that risk factors for ARN differ between warfarin and DOACs and that these risk factors may be associated with bleeding risk. Therefore, the risk of ARN may be decreased by better managing bleeding risk in patients taking anticoagulants.
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Affiliation(s)
| | - Takahiro Niimura
- Department of Clinical Pharmacology and Therapeutics, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Yoshito Zamami
- Department of Clinical Pharmacology and Therapeutics, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan.,Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacology and Therapeutics, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan.,Department of Pharmacy, Tokushima University Hospital, Tokushima, Japan
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Lee JY, Oh IY, Lee JH, Kim SY, Kwon SS, Yang HJ, Kim YK, Bang SM. The increased risk of bleeding due to drug-drug interactions in patients administered direct oral anticoagulants. Thromb Res 2020; 195:243-249. [DOI: 10.1016/j.thromres.2020.07.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/21/2020] [Accepted: 07/30/2020] [Indexed: 11/25/2022]
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35
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Position paper on the safety/efficacy profile of direct oral anticoagulants in patients with chronic kidney disease. Consensus document from the SIN, FCSA and SISET. BLOOD TRANSFUSION = TRASFUSIONE DEL SANGUE 2020; 18:478-485. [PMID: 33000751 DOI: 10.2450/2020.0156-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022]
Abstract
Direct oral anticoagulants (DOAC) are mostly prescribed to prevent cardioembolic stroke in patients with non-valvular atrial fibrillation (AF). An increasing number of guidelines recommend DOAC in AF patients with preserved renal function for the prevention of thromboembolism, and an increased use of DOAC in daily practice has been recorded also in elderly patients. Ageing is associated with a reduction in glomerular filtration rate, and impaired renal function, regardless of the cause, increases the risk of bleeding. Multiple medication use (polypharmacy) for treating superimposed co-morbidities is common in both elderly and chronic kidney disease (CKD) patients and drug-drug interaction may cause accumulation of DOAC, thereby increasing the risk of bleeding. The safety profile of DOAC in patients with CKD has not been defined with any certainty, particularly in those with severely impaired renal function or end stage renal disease. This has been due to the heterogeneity of studies and the relative paucity of data. This document reports the position of three Italian scientific societies engaged in the management of patients with atrial fibrillation who are treated with DOAC and present with CKD.
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Li A, Li MK, Crowther M, Vazquez SR. Drug-drug interactions with direct oral anticoagulants associated with adverse events in the real world: A systematic review. Thromb Res 2020; 194:240-245. [PMID: 33213849 PMCID: PMC7417902 DOI: 10.1016/j.thromres.2020.08.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/27/2020] [Accepted: 08/06/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Direct oral anticoagulants (DOACs) have emerged as safe and effective alternatives to Vitamin-K antagonists for treatment and prevention of arterial and venous thrombosis. Due to their novelty, pharmacokinetic DOAC drug-drug interactions (DDIs) that result in clinical adverse events have not been well-documented. OBJECTIVE This study aims to systematically review reported pharmacokinetic DDIs resulting in clinical adverse events through documented observational evidence to better inform clinicians in clinical practice. METHODS A comprehensive literature review of EMBASE, MEDLINE, and Ovid HealthStar was conducted through March 10th, 2020. Two independent reviewers screened and extracted data from eligible articles according to pre-established inclusion and exclusion criteria. Articles reporting bleeding or thrombotic outcomes in non-controlled (observational) settings resulting from suggested pharmacokinetic DOAC DDIs were included. RESULTS A total of 5567 citations were reviewed, of which 24 were included following data extraction. The majority were case reports (n = 21) documenting a single adverse event resulting from a suspected DOAC DDI, while the remaining papers were a case series (n = 1) and cohort studies (n = 2). The most commonly reported interacting drugs were amiodarone and ritonavir (bleeding), and phenobarbital, phenytoin, and carbamazepine (thrombosis). Bleeding events more often resulted from a combined mechanism (P-glycoprotein AND CYP3A4 inhibition), whereas thrombotic events resulted from either combined OR single P-glycoprotein/CYP3A4 induction. CONCLUSION Current literature evaluating the real-world risk of DOAC DDIs is limited to few case reports and retrospective observational analyses. Clinicians are encouraged to continue to report suspected drug interactions resulting in adverse events.
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Affiliation(s)
- Allen Li
- University of Ottawa, Faculty of Medicine, Ottawa, ON, Canada.
| | - Ming K. Li
- University of Toronto, Faculty of Medicine, Toronto, ON, Canada
| | - Mark Crowther
- Division of Hematology & Thromboembolism, Department of Medicine, McMaster University, Hamilton, ON, Canada.
| | - Sara R. Vazquez
- Department of Pharmacy Services, Thrombosis Service, University of Utah Health, Salt Lake City, UT, United States
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37
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Vitamin K therapy to reduce bleeding. Blood 2020; 136:780-782. [PMID: 32790852 DOI: 10.1182/blood.2020006563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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38
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Balbi GGM, Pacheco MDS, Monticielo OA, Funke A, Danowski A, Santiago MB, Staub HL, Rêgo J, de Andrade DCO. Antiphospholipid Syndrome Committee of the Brazilian Society of Rheumatology position statement on the use of direct oral anticoagulants (DOACs) in antiphospholipid syndrome (APS). Adv Rheumatol 2020; 60:29. [PMID: 32460902 DOI: 10.1186/s42358-020-00125-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/08/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The term Direct Oral Anticoagulants (DOACs) refers to a group of drugs that inhibit factor Xa or thrombin. Even though their use for treating different thrombotic or prothrombotic conditions is increasing recently, there is no compelling evidence indicating that those medications are safe in all antiphospholipid syndrome (APS) patients. METHODOLOGY To address this issue, specialists from the Antiphospholipid Syndrome Committee of the Brazilian Society of Rheumatology performed a comprehensive review of the literature regarding DOACs use in APS to answer the three following questions: (1) potential mechanisms of action of these drugs that could be relevant to APS pathogenesis, (2) DOACs interference on lupus anticoagulant testing, and (3) the efficacy of DOACs in APS. POSITION STATEMENT After critically reviewing the relevant evidence, the authors formulated 8 Position Statements about DOACs use in APS. CONCLUSION DOACs should not be routinely used in APS patients, especially in those with a high-risk profile (triple positivity to aPL, arterial thrombosis, and recurrent thrombotic events). In addition, DOACs interferes with LA testing, leading to false-positive results in patients investigating APS.
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Affiliation(s)
- Gustavo Guimarães Moreira Balbi
- Serviço de Reumatologia, Hospital Universitário, Universidade Federal de Juiz de Fora (UFJF), Av. Eugênio do Nascimento, s/n - Dom Bosco, Juiz de Fora, MG, 36038-330, Brazil.
| | - Marcelo de Souza Pacheco
- Serviço de Reumatologia, Hospital Federal dos Servidores do Estado (HFSE), Rio de Janeiro, RJ, Brazil
| | - Odirlei Andre Monticielo
- Serviço de Reumatologia, Departamento de Medicina Interna, Hospital de Clínicas de Porto Alegre (HCPA), Universidade Federal do Rio Grande do Sul (UFGRS), Porto Alegre, RS, Brazil
| | - Andreas Funke
- Serviço de Reumatologia, Hospital de Clínicas, Universidade Federal do Paraná (UFPR), Curitiba, PR, Brazil
| | - Adriana Danowski
- Serviço de Reumatologia, Hospital Federal dos Servidores do Estado (HFSE), Rio de Janeiro, RJ, Brazil
| | - Mittermayer Barreto Santiago
- Serviço de Reumatologia, Universidade Federal da Bahia (HUPES) e Escola Baiana de Medicina e Saúde Pública, Salvador, BA, Brazil
| | - Henrique Luiz Staub
- Serviço de Reumatologia, Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
| | - Jozelia Rêgo
- Serviço de Reumatologia, Faculdade de Medicina, Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil
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Wojtukiewicz MZ, Skalij P, Tokajuk P, Politynska B, Wojtukiewicz AM, Tucker SC, Honn KV. Direct Oral Anticoagulants in Cancer Patients. Time for a Change in Paradigm. Cancers (Basel) 2020; 12:cancers12051144. [PMID: 32370207 PMCID: PMC7281117 DOI: 10.3390/cancers12051144] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 04/30/2020] [Accepted: 04/30/2020] [Indexed: 12/31/2022] Open
Abstract
Thrombosis is a more common occurrence in cancer patients compared to the general population and is one of the main causes of death in these patients. Low molecular weight heparin (LMWH) has been the recognized standard treatment for more than a decade, both in cancer-related thrombosis and in its prevention. Direct oral anticoagulants (DOACs) are a new option for anticoagulation therapy. Recently published results of large randomized clinical trials have confirmed that DOAC may be a reasonable alternative to LMWH in cancer patients. The following review summarizes the current evidence on the safety and efficacy of DOAC in the treatment and prevention of cancer-related thrombosis. It also draws attention to the limitations of this group of drugs, knowledge of which will facilitate the selection of optimal therapy.
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Affiliation(s)
- Marek Z. Wojtukiewicz
- Department of Oncology, Medical University of Białystok, 12 Ogrodowa St., 15-027 Białystok, Poland; (P.S.); (P.T.)
- Department of Clinical Oncology, Comprehensive Cancer Center, 12 OgrodowaSt., 15-369 Białystok, Poland
- Correspondence:
| | - Piotr Skalij
- Department of Oncology, Medical University of Białystok, 12 Ogrodowa St., 15-027 Białystok, Poland; (P.S.); (P.T.)
- Department of Clinical Oncology, Comprehensive Cancer Center, 12 OgrodowaSt., 15-369 Białystok, Poland
| | - Piotr Tokajuk
- Department of Oncology, Medical University of Białystok, 12 Ogrodowa St., 15-027 Białystok, Poland; (P.S.); (P.T.)
- Department of Clinical Oncology, Comprehensive Cancer Center, 12 OgrodowaSt., 15-369 Białystok, Poland
| | - Barbara Politynska
- Department of Philosophy and Human Psychology, Medical University of Białystok, 37 Szpitalna St., 15-295 Białystok, Poland; (B.P.); (A.M.W.)
- Robinson College, University of Cambridge, Cambridge CB3 9AN, UK
| | - Anna M. Wojtukiewicz
- Department of Philosophy and Human Psychology, Medical University of Białystok, 37 Szpitalna St., 15-295 Białystok, Poland; (B.P.); (A.M.W.)
| | - Stephanie C. Tucker
- Bioactive Lipids Research Program, Department of Pathology-School of Medicine, Detroit, MI 48202, USA; (S.C.T.); (K.V.H.)
| | - Kenneth V. Honn
- Bioactive Lipids Research Program, Department of Pathology-School of Medicine, Detroit, MI 48202, USA; (S.C.T.); (K.V.H.)
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
- Department of Oncology, Karmanos Cancer Institute, Detroit, MI 48202, USA
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40
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Auditeau C, Talbot A, Blandinières A, Smadja DM, Gendron N. Place des anticoagulants oraux directs dans la prise en charge de la maladie thromboembolique veineuse associée au cancer en 2020. Bull Cancer 2020; 107:574-585. [DOI: 10.1016/j.bulcan.2020.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/17/2020] [Accepted: 02/19/2020] [Indexed: 11/27/2022]
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Miano TA, Yang W, Shashaty MGS, Zuppa A, Brown JR, Hennessy S. The Magnitude of the Warfarin-Amiodarone Drug-Drug Interaction Varies With Renal Function: A Propensity-Matched Cohort Study. Clin Pharmacol Ther 2020; 107:1446-1456. [PMID: 32112562 DOI: 10.1002/cpt.1819] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 02/16/2020] [Indexed: 12/20/2022]
Abstract
Amiodarone inhibits warfarin metabolism and is associated with major bleeding during warfarin therapy. Managing this drug-drug interaction (DDI) is challenging because of substantial interpatient variability in DDI magnitude. Because renal dysfunction induces changes in drug metabolism and protein binding that could alter cytochrome P450 inhibition mechanisms, we hypothesized that renal dysfunction alters the impact of the warfarin-amiodarone DDI. We tested this question in a propensity-matched cohort study of hospitalized patients with atrial fibrillation. Patients were queried from an electronic health record database. Renal function was estimated with creatinine clearance (CrCl). Warfarin response was measured with the warfarin sensitivity index (WSI), a dose-normalized international normalized ratio (INR) measure, and was modeled with multilevel mixed-effects linear regression. Time to supratherapeutic INR (> 4) was modeled using Cox regression. Propensity score matching resulted in 4,518 patients administered amiodarone and 4,518 controls. Amiodarone's effect on warfarin response varied threefold across the renal function range, increasing WSI by 36% in patients with normal renal function (CrCl 115 mL/minute), but by only 11.8% in patients with severe renal dysfunction (CrCl 15 mL/minute). Similarly, amiodarone had a strong effect in patients with normal renal function (hazard ratio (HR) 1.80; 1.23, 2.64), but a negligible effect on supratherapeutic INR hazard in patients with severe renal dysfunction (HR 1.01; 0.75, 1.37). These results suggest that renal function is a novel factor that explains substantial variability in the warfarin-amiodarone DDI. This information could inform warfarin dosage adjustment and monitoring and may have implications for the selection of oral anticoagulation agents in patients treated with amiodarone.
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Affiliation(s)
- Todd A Miano
- Center for Pharmacoepidemiology Research and Training, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Wei Yang
- Center for Pharmacoepidemiology Research and Training, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Michael G S Shashaty
- Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Pulmonary, Allergy, and Critical Care Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Athena Zuppa
- Department of Anesthesiology and Critical Care Medicine, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jeremiah R Brown
- The Dartmouth Institute for Health Policy and Clinical Practice, Lebanon, New Hampshire, USA.,Department of Epidemiology, Geisel School of Medicine, Hanover, New Hampshire, USA.,Department of Biomedical Data Science, Geisel School of Medicine, Hanover, New Hampshire, USA
| | - Sean Hennessy
- Center for Pharmacoepidemiology Research and Training, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Wang Y, Wang C, Wang S, Zhou Q, Dai D, Shi J, Xu X, Luo Q. Cytochrome P450-Based Drug-Drug Interactions of Vonoprazan In Vitro and In Vivo. Front Pharmacol 2020; 11:53. [PMID: 32116727 PMCID: PMC7033572 DOI: 10.3389/fphar.2020.00053] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 01/16/2020] [Indexed: 12/11/2022] Open
Abstract
Background Vonoprazan fumarate is a potassium-competitive acid blocker that was developed as a novel acid-suppressing drug for multiple indications. As a potential alternative to proton-pump inhibitors, the determination of the drug-drug interactions is vital for further applications. Probe drug cocktails are a type of rapid, economical, and efficient approach for evaluating cytochrome P450 enzyme activities. Since vonoprazan is metabolized partly by cytochrome P450, cocktails were used to study CYP-based drug-drug interactions. Methods This study was conducted both in vitro and in vivo. In the in vitro study of rat liver microsomes, ultra-performance liquid chromatography coupled to tandem mass spectrometry was utilized to assess the reversible inhibition of cytochrome P450 by vonoprazan by determining the concentration of probe drugs (phenacetin, bupropion, tolbutamide, dextromethorphan, midazolam, chlorzoxazone). The differences in the levels of probe drugs between the rat groups with or without vonoprazan administration were also tested in the rats. Results In vitro analysis revealed that the IC50 values of midazolam, tolbutamide, dextromethorphan, and bupropion in rat microsomes were 22.48, 18.34, 3.62, and 3.68 μM, respectively, while chlorzoxazone and phenacetin displayed no inhibition. In vivo analysis revealed that midazolam, bupropion, dextromethorphan, and tolbutamide showed significant (P < 0.05) differences in distinct pharmacokinetic parameters after vonoprazan administration, while those of chlorzoxazone and phenacetin were not significantly different. Conclusion The in vitro and in vivo results indicated that vonoprazan can inhibit CYP3A4, CYP2C9, CYP2D6, and CYP2B6, suggesting that the coadministration of vonoprazan with cytochrome P450 substrates should be performed cautiously in clinical settings.
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Affiliation(s)
- Yiran Wang
- Department of Gastroenterology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Changxiong Wang
- Department of Gastroenterology, The Sixth Affiliated Hospital of Wenzhou Medical University, The People's Hospital of Lishui, Lishui, China
| | - Shuanghu Wang
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People's Hospital of Lishui, Lishui, China
| | - Quan Zhou
- The Laboratory of Clinical Pharmacy, The Sixth Affiliated Hospital of Wenzhou Medical University, The People's Hospital of Lishui, Lishui, China
| | - Dapeng Dai
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Jihua Shi
- Department of Gastroenterology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Xue Xu
- Department of Gastroenterology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Qingfeng Luo
- Department of Gastroenterology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
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Kimpton M, Carrier M. What's new in the prevention and treatment of cancer-associated thrombosis? HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:158-166. [PMID: 31808858 PMCID: PMC6913445 DOI: 10.1182/hematology.2019000023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Venous thromboembolism (VTE) is a common complication in ambulatory cancer patients receiving chemotherapy. Current clinical guidelines recommend against the use of routine primary thromboprophylaxis in unselected ambulatory cancer patients. The Khorana score is a risk assessment tool derived and prospectively validated for the identification of cancer patients at high risk of thrombotic complications. Recently, 2 randomized, controlled trials have assessed the use of low-dose direct oral Xa inhibitors, apixaban and rivaroxaban, for the prevention of cancer-associated thrombosis in ambulatory patients at intermediate to high risk of VTE (Khorana score ≥2). Taken together, these trials have shown that low-dose direct oral Xa inhibitors reduce the risk of VTE in this patient population without a significant increase in major bleeding. These results should encourage clinicians to consider the use of primary thromboprophylaxis in ambulatory cancer patients at intermediate to high risk of VTE who do not have any apparent risk factors for bleeding. The direct oral Xa inhibitors have also been assessed in the acute management of cancer-associated thrombosis. Current evidence suggests that these drugs are a convenient, effective, and safe option for the management of acute VTE in many cancer patients. Low-molecular weight heparin, however, may continue to be the treatment of choice depending on the presence of bleeding risk factors, the type of cancer, drug-drug interactions, and patient preferences.
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Affiliation(s)
- Miriam Kimpton
- Department of Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Marc Carrier
- Department of Medicine, The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, ON, Canada
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Abstract
Direct oral anticoagulants (DOACs) have been developed as a viable and in some cases superior alternative to warfarin. These agents have overcome some of the limitations of warfarin, which has a narrow therapeutic window and many food and drug interactions. DOACs have been demonstrated to have a more predictable and reliable pharmacology and, unlike warfarin, do not require frequent monitoring of anticoagulant effect. For these reasons, the use of DOACs is increasing. Despite the many positive attributes of these agents, limitations and contraindications do exist. An understanding of the pharmacology, indications, and contraindications is therefore crucial for effective patient management. We review the available agents to aid in effective drug utilization.
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Comparative Effectiveness and Safety of Direct Oral Anticoagulants: Overview of Systematic Reviews. Drug Saf 2019; 42:1409-1422. [DOI: 10.1007/s40264-019-00866-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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46
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Drug interactions with oral anticoagulants in German nursing home residents: comparison between vitamin K antagonists and non-vitamin K antagonist oral anticoagulants based on two nested case-control studies. Clin Res Cardiol 2019; 109:465-475. [PMID: 31286199 DOI: 10.1007/s00392-019-01526-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/03/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND Vitamin K antagonists (VKAs) are susceptible to drug-drug interactions. Non-VKA oral anticoagulants (NOACs) have a decreased sensitivity to pharmacokinetic interactions and might be therefore considered superior in patients treated with multiple drugs. The objective of this study was to compare the risk of serious bleeding associated with interacting drugs in German nursing home residents treated with VKA or NOAC. METHODS Using claims data of new nursing home residents aged ≥ 65 years (2010-2014) we conducted separate nested case-control analyses within two cohorts of patients treated with VKA or NOAC, respectively. Cases were defined as patients hospitalized for serious bleeding. For each case, up to 20 controls were selected by risk-set sampling. Conditional logistic regression was used to obtain confounder-adjusted odds ratios (aORs) and 95% confidence intervals (CI) for the risk of bleeding associated with VKA or NOAC use and interacting drugs compared with the use of the respective oral anticoagulant alone. RESULTS Among 127,227 new nursing home residents, 16,804 patients received oral anticoagulation. Based on 372 cases and 7281 matched controls, the highest risk of bleeding in VKA users was observed for the concomitant use of antibiotics (aOR 3.00; CI 2.11-4.27) vs. VKA use alone, followed by non-steroidal anti-inflammatory drugs (1.66; 1.13-2.43). Among 243 NOAC cases and 4776 matched controls, elevated risks for bleeding were observed for the use of heparins (2.05; 1.25-3.36) and platelet inhibitors (1.92; 1.36-2.72). CONCLUSIONS Concomitant medication needs to be prescribed cautiously and monitored closely in nursing home residents treated with oral anticoagulants.
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Cacabelos R, Cacabelos N, Carril JC. The role of pharmacogenomics in adverse drug reactions. Expert Rev Clin Pharmacol 2019; 12:407-442. [DOI: 10.1080/17512433.2019.1597706] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ramón Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
| | - Natalia Cacabelos
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
| | - Juan C. Carril
- EuroEspes Biomedical Research Center, Institute of Medical Science and Genomic Medicine, Corunna, Spain
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Kimpton M, Carrier M. Efficacy and safety of Xa inhibitors for the treatment of cancer-associated venous thromboembolism. Expert Opin Drug Saf 2019; 18:313-320. [DOI: 10.1080/14740338.2019.1601699] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Miriam Kimpton
- Department of Medicine, University of Ottawa, and the Ottawa Hospital Research Institute, Ottawa, Canada
| | - Marc Carrier
- Department of Medicine, University of Ottawa, and the Ottawa Hospital Research Institute, Ottawa, Canada
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